Don’t take too many showers. Yes, it’s summertime and you’re working up a sweat, but taking multiple showers throughout the day can wreak havoc with your skin: Though you might think it’s hydrating, topically, water can have a drying effect on your epidermis. To avoid looking like a prune, douse in small doses and always moisturize immediately after showering.

Do drink plenty of water. While topically water can hinder your skin, drinking 64 ounces of water daily is essential for a healthy complexion because it flushes out toxins and keeps your insides running efficiently. Whether you drink bottled, filtered, or tap water doesn’t matter—getting your eight glasses in matters most. Remember that fruits and veggies are also good sources of H20.

Don’t go overboard with rich moisturizers. While you want to keep your skin supple during summer, you can afford to lighten up—especially since thick doesn’t necessarily equal better. Heavy creams can create a barrier on the surface of your face and keep your skin from absorbing moisture. And formulas that contain synthetic ingredients can trap dead cells and leave your complexion looking dull.

Do use a nighttime face lotion. There’s evidence that skin-cell regeneration is slightly faster at night than during the day, so take advantage of your skin’s receptiveness and don’t skimp on overnight hydration.

Double Duty

Don’t apply too many face products at once, no matter how eager you are to try them out. “Using too many products can irritate the skin,” says Jeanine Downie, MD, a dermatologist in New York City.

Do nourish your skin with a nutrient-packed moisturizer—in other words, rather than use a bunch of different formulas, find a multitasking hero product that takes care of your needs in one go. Look for one that contains vitamin C, to even skin tone and minimize blotchiness, and potent antiagers like retinoic acid and niacinamide.